The carbonaceous Murchison chondrite is one of the most studied meteorites. It is considered to be an astrobiology standard for detection of extraterrestrial organic matter. Considerable work has been done to resolve the elemental composition of this meteorite. Raman spectroscopy is a very suitable technique for non-destructive rapid in situ analyses to establish the spatial distribution of car...

This paper explores the impacts of primary carbonaceous aerosol on cloud condensation nuclei (CCN) concentrations in a global climate model with size-resolved aerosol microphysics. Organic matter (OM) and elemental carbon (EC) from two emissions inventories were incorporated into a preexisting model with sulfate and seasalt aerosol. The addition of primary carbonaceous aerosol increased CCN(0.2...

Haptoglobin binding to haemoglobin and its isolated a and #-chains was studied by use of a highly sensitive solid-phase radiometric assay. As expected, adsorbents of haemoglobin bound '25I-labelled haptoglobin more efficiently than did adsorbents of the (achain. However, unexpectedly, adsorbents of the f-chain were found to be essentially identical with those of the a-chain in their ability to ...

Methylene Blue (MB) adsorption from aqueous phase was investigated using three types of adsorbents. Granular solid adsorbents were prepared from waste wood fly ash and clay. Experiments were conducted in a batch system for determining sorption equilibria. For continuous process, the adsorbents were packed in a column to remove MB from the synthetic wastewater. The fabricated adsorbents and also...

Two gold-selective adsorbents were prepared from MCM-41 by grafting amino and thiol groups. The mesoporous silica adsorbents possess higher adsorption capacity for gold compared to activated carbons. The OMSNH2 adsorbent was able to selectively remove and adsorb gold from solutions containing copper. Pure gold was recovered by a simple acid wash and the regenerated adsorbents could be reused. T...

A new isolation and purification method for bioproducts using membrane-encapsulated affinity adsorbents was investigated. The new method involves encapsulation of affinity adsorbents, batch adsorption of the bioproduct from whole fermentation broth and rapid batch desorption after dissolution of the capsule membranes. Recovery of protein A from Staphylococcus aureus was used as the model experi...

Environmental pollution is becoming a major global issue with increasing anthropogenic activities that release massive toxic pollutants into the land, air, and water. Nanomaterials have gained most popularity in last decades over conventional methods because of their high surface area to volume ratio higher reactivity. including metal, metal oxide, zero-valent ions, carbonaceous nanomaterials, ...

The larger portion of the organic carbon in carbonaceous chondrites (CC) is present as a complex and heterogeneous macromolecular material that is insoluble in acids and most solvents (IOM). So far, it has been analyzed only as a whole by microcopy (TEM) and spectroscopy (IR, NMR, EPR), which have offered and overview of its chemical nature, bonding, and functional group composition (e. g., [1]...

Ala~ntct--Tbe performance characteristics of two activated carbons and eight synthetic adsorbents are compared. The comparison addresses both the equilibrium capacities and mass transport properties of the adsorbents. A new empirical adsorption isotherm is employed for description of adsorption equilibrium data. A' predictive mathematical model is used for forecasting adsorption bed performance...